Metal window-sash.



J. T. ALLMAND.

METAL WINDOW SASH.

APPLICATION FILED 050.15. 1913.

Patented July 27, 1915.

WITrIEa 5E3 IHVEHTOR a .MMA m f v HTTORHEY JOHN T. ALLMAND, OF DETROIT, MICHIGAN, ASSIGNOR TO FISHER CLOSED BODY 00.,

0F DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

METAL WINDOW-SASH.

To all @071 0m it may concern:

Be it known that I, JOHN T. ALLMAND, a citizen of the United States, residing at Detroit, county of Wayne, State of Michigan, have invented a certain new and useful Improvement in Metal Window-Sashes, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to metal window sashes used in conjunction with a fence upon the window frame.

It has for its object a metal sash bar provided with a groove that has a wedging engagement with the fence so as to act as a perfect weather eXcluder and as an antirattler.

In the drawings the figure is a sectional perspective.

A slab of glass at is supported in the groove 6 of a metal sash bar. A strip of resilient metal 0 cushions the glass and pre vents breaking.

The hollow sash rail (1 is made of drawn metal which is drawn out to form sides bridged at the tops by the top wall which has forced therein the glass-supporting groove 6 and the sides are joined at their bottoms by the bottom wall provided with the deep and narrow fence groove 0. The groove 6 is wedge-shape in cross-section or provided with an inclined wall so that the fence f which is wedge-shape in cross-section or provided with a beveled face and, preferably, steel may engage with the wedgeshaped walls of the fence groove in a tight It will be noticed from the drawing that the bevel face of the fence f is comparatively wide and that the inclined wall of the fence groove '6 is comparatively deep, both the Specification of Letters Patent,

Patented July 2'7, 1915.

Serial No. 806,710.

inwardly therefrom, for it is apparent there is no substantial resisting agent except the side walls of the sash bar and inasmuch as these are sheet metal they will permit a certain amount of spreading. This form of construction affords a groove with elastic Walls, and it is quite apparent that a structure of this type fits very much tighter over the fence than would a solid structure or one that had a groove whose side walls could not spread.

The fence f is a solid bar and is inserted in the window frame bar or sill g. The

horizontal surface of this bar or sill on one side of the fence is somewhat higher than on the other side of the fence. One wall of the fence groove continues down somewhat below the lower horizontal wall of the sash bar so as to extend slightly below the horizontal surface of the frame bar on the opposite side. The extended wall of the fence groove and the extended wall of the metal sash bar lie against each other so as to form a double strip of metal at this'side.

The construction shown in the drawings has its chief use in automobile body construction. A fence in automobile body construction is something more than a weather strip. The fence serves to hold in closed position a Window, wind-shield or ventilator which is capable'of both lifting and swinging movement. In ordinary window construction the vertical guides at the side of the window frame hold the window in its vertical position, but where the window not only lifts but swings, as is usually .necessary in automobile bodies, it is not convenient to use such vertical fixed ggides; the

consequence is that some other member must ,be used to hold the sash in vertical position; this other member is the strip shown in the drawings and which is ordinarily called the fence.

The advantage of my invention is that not only an effective weather excluder is provided and the fence is completely concealed when the sash is down over it, but also the sash and fence engage so tightly that there is absolutely no rattle whatever; in fact, they can be made to engage so tightly that it requires mechanical means to lift them apart. This structure also does away with the old form of seating a window in grooves cut in the lower horizontal frame bar. This required cushioning of the window to prevent rattling by inserting rubber in the sides and in the bottom of the groove.

What I claim is:

1. The combination Cwith a horizontal frame bar, a fence vertically disposed in said frame bar and having an inverted wedge-shaped cross-section, the said frame bar having a horizontal surface on one side of the fence that is higher than the horizontal surface on the other side of the, fence, of a metal frame bar constructed of sheet metal that is bent into a somewhat rectangular shape in cross-section and at the bottom is bent to form a wedge shaped groove, one

wall of the groove extending down and. below the horizontal bottom wall of the sash and the adjacent wall of the sash doubling back upon the said wall of the groove, subbridged at their tops by a top wall having a glass-retaining groove forced inwardly therein, and said side walls joined at their bottoms by a bottom wall having a portion forced inwardly and upwardly to form a narrow and deep fence-groove, which gradually narrows toward its bottom in correspondence with the taper of the fence, the size of the groove being calculated so that when the fence enters the groove the walls of the' groove are spread slightlv so as to tightly engage the fence.

3. The combination with a fence tapering toward its upper edge, of a hollow drawnmetal sash bar having on one side a glassretaining groove forced therein and at the opposite side a fence-groove forced therein, the said fence-groove being wedge shaped in cross section and constructed to fit tightly over the fence.

In testimony whereof, I sign this specification in the presence of two witnesses.

JOHN T. ALLMAND.

Witnesses:

HERBERT Hm, STUART C. BARNES. 

